Swing bed



FIG. 1 is a front perspective view of a swing bed;

FIG. 2 is a front elevation view of the swing bed;

FIG. 3 is a rear elevation view of the swing bed;

FIG. 4 is a side elevation view of the swing bed;

FIG. 5 is an opposite side elevation view of the swing bed; and,

FIG. 6 is top view of the swing bed. 

CLAIM The ornamental design for a swing bed, as shown and described. 